At the FIS Nordic World Ski Championships 2009 in Liberec, she finished 82nd in the individual sprint while being lapped in the 15 km pursuit event.

At the FIS Nordic World Ski Championships 2017 in Lahti, she finished 8th in the 5 km qualification classic race.

Ntanou won a bronze medal in the overall ranking of the FIS Balkan Cup series in 2017 and 2018.

Ntanou grew up in Naousa, a town in the northern part of Greece with great tradition in winter sports.

She studied Economic Science at the Aristotle University of Thessaloniki and graduated in 2012.